If you want to fit a stretcher in the aircraft you are going to need to build a bigger aircraft. The Lightweight stretcher doesn't fit in the back of a Maritime Lynx without having the need to remove seats. If you remove the seats there is nowhere for anyone to sit. It is possible to winch using a Lightweight stretcher but it then means that the rescue hoist is in the way of the casualty. The last "Casualty" who was flown inside a stretcher inside an RN Lynx ended up with a broken nose for his troubles because the winch hook twatted him on the bonce. The aim is to transfer the casualty from a hostile environment to the safety of a medical facility....not to injury him in the process.